ClassID:

143622

F04C18/44 - CPC Classification

Classification description:

Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and having a hinged member with vanes hinged to the inner member

Recent Application in this class: